Although the electronic cigarette has been around for almost 3 years, there is still a lot of confusion about what they are and how they work. In short, they are a small electronic form of NRT (nicotine replacement therapy). They are designed to look and feel just like a real cigarette. They burn nothing and are much less expensive to use than other forms of NRT or tobacco. Many users tout them as incredibly helpful as a smoking cessation aid.
Smokeless cigarettes are self contained, precisely controlled vaporizing devices. They use a battery which contains the micro electronics for controlling the unit, an atomizer that vaporizes the e-liquid (nicotine containing liquid) and a reservoir (cartridge or cartomizer) to hold the eliquid. E-cigs are rechargeable and refillable making them economically attractive to smokers.
Smokers find the e-cig more effective than conventional NRT for smoking cessation. This is likely because standard NRT (patches and gum) do not provide an immediate dose of nicotine like cigarettes and ecigs do. Smokers accustomed to the immediate dose of nicotine find the e-cig acts just like a tobacco cigarette. Smokers also like the fact they provide the tactile sensation of having a cigarette in their hand and also the feeling of taking a dragwhile inhaling.
Now add to this the fact that smokeless cigarettes are truly smokeless. No 2nd hand smoke at all. The user inhales only a light nicotine containing vapor. When the you exhale, nothing is released but a small amount of water vapor. This allows you to enjoy your electronic cigarette in most places where smoking is prohibited. No smoke also means you, your clothes, your car etc. will no longer smell like smoke.
Finally, the most noted plus of the e-cigis the savings. When your ecig is out of e-liquid, you simply refill it. The amount of e-liquid that equals a pack of cigarettes costs $1-$2 dollars so you can easily calculate your savings.
One last note is that the e-liquid is available in various nicotine strengths from 36mg/ml to 0mg/ml. This makes tapering your nicotine dose down very easy and you can eventually quit nicotine all together if you like.